*PLEASE SOLVE USING EQUATIONS* Lea spent half of her weekly allowance playing mini-golf. To earn more money her parents let her wash the dog for $8.20. What is her weekly allowance if she ended with $16.40?

A) $16.40
B) $24.60
C) $17.22
D) $4.10

Abee with velocity vector r'(t) starts out at (5, −5, −3) at t = 0 and flies around for 5 seconds. where is the bee located at time t = 5 if 5 0 r'(u)du = 0?

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?